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docs:lxc
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docs:lxc [2014-05-13 18:33] glen Links to thinfo changed to th |
docs:lxc [2015-10-05 11:15] glen |
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| * 3.8+ kernel [[http://docs.docker.io/en/latest/installation/kernel/|according]] to docker devs | * 3.8+ kernel [[http://docs.docker.io/en/latest/installation/kernel/|according]] to docker devs | ||
| * [[package>lxc]] package | * [[package>lxc]] package | ||
| - | * cgroups mounted, use [[package>systemd]] or [[package>libcgroup]] for that. | + | * cgroups mounted, use [[package>systemd]] or [[package>libcgroup]] for that (edit and enable most groups in ///etc/cgconfig.conf// except debug) |
| + | |||
| + | <note warning>Kernels with vserver support compiled in, do not work correctly with LXC | ||
| + | |||
| + | * [[http://lists.pld-linux.org/mailman/pipermail/pld-devel-en/2014-January/thread.html#23786]] | ||
| + | * http://www.paul.sladen.org/vserver/archives/201402/0015.html | ||
| + | </note> | ||
| ===== Guest creation ===== | ===== Guest creation ===== | ||
| Line 33: | Line 39: | ||
| 'test' created | 'test' created | ||
| - | # lxc-ls --fancy | + | # lxc-ls --fancy (install python3-lxc for lxc-ls) |
| NAME STATE IPV4 IPV6 | NAME STATE IPV4 IPV6 | ||
| ----------------------------------- | ----------------------------------- | ||
| Line 53: | Line 59: | ||
| There are two versions of PLD available for guest systems: | There are two versions of PLD available for guest systems: | ||
| - | * ac - [[:AcInfo|PLD 2.0 (Ac)]] | + | * ac - [[:ac|PLD 2.0 (Ac)]] |
| * th - [[:th|PLD 3.0 (Th)]] | * th - [[:th|PLD 3.0 (Th)]] | ||
| Line 65: | Line 71: | ||
| ===== Common problems / Useful tricks ===== | ===== Common problems / Useful tricks ===== | ||
| + | |||
| + | ==== lxc-start has no output ==== | ||
| + | |||
| + | In case ''lxc-start -n test'' produces no output, ensure /dev/console is present in guest filesystem. | ||
| ==== lxc-stop is not graceful ==== | ==== lxc-stop is not graceful ==== | ||
| Line 121: | Line 131: | ||
| | vserver test stop | lxc-stop -n test | | | vserver test stop | lxc-stop -n test | | ||
| | vserver-stat | %%lxc-ls --fancy --running%% | you need ''python3-lxc'' installed for this tool | | | vserver-stat | %%lxc-ls --fancy --running%% | you need ''python3-lxc'' installed for this tool | | ||
| - | ===== Sample configs ===== | ||
| - | ==== config for network ==== | ||
| - | static networking, set ''VSERVER=yes'' and ''VSERVER_ISOLATION_NET=yes'' in guest ''/etc/sysconfig/system'' to disable all network configuration by guest. | + | ===== Network configs ===== |
| + | ==== general ==== | ||
| - | - uses ''macvlan'' | + | static networking, set ''VSERVER=yes'' and ''VSERVER_ISOLATION_NET=yes'' in guest ''/etc/sysconfig/system'' to disable all network configuration by guest, set RC_PROMPT=no to avoid hanging startup scripts, in general it's good idea to turn off there most of things |
| - | - that interface is NOT visible on host | + | |
| - | - you can't filter it from host's firewall | + | |
| - | - you HAVE to set mac. If not - on every container start you'll have different one (your router will not pass the traffic). | + | |
| - | - iptables is initialized from lxc.hook.pre-mount hook (ran in the container's namespace and having macvlan interface visible) | + | |
| + | ==== network using macvlan in bridge mode ==== | ||
| + | - traffic from host to guest (and vice-versa) is NOT passed. external trafic works | ||
| + | - guest interface is NOT visible on host | ||
| + | - you can't filter guest straffic from host's firewall | ||
| + | - host can use seme default interface with and without guests running. | ||
| + | - one have better to set static MAC address. If not - on every container start you'll have different MAC generated and your router may have problems with passing traffic. | ||
| + | - iptables is initialized from lxc.hook.pre-mount hook (ran in the container's namespace and having guest macvlan interface visible) | ||
| first boot with ''hwaddr'' line disabled, look what the random address was assigned, set it in config. | first boot with ''hwaddr'' line disabled, look what the random address was assigned, set it in config. | ||
| Line 157: | Line 169: | ||
| + | ==== network using bridged veth interfaces ==== | ||
| + | |||
| + | ==== More raeding about network ==== | ||
| + | |||
| + | [[http://containerops.org/2013/11/19/lxc-networking/|Elaborate article about configuring different types of network ]] | ||
| + | ===== Sample configs ===== | ||
| ==== full config ==== | ==== full config ==== | ||
docs/lxc.txt · Last modified: 2016-08-21 00:36 by glen
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